Обсуждение: Unexpected error in grant/revoke script

Hi all,

I have the following function:

create function new_student (text) returns text as $$
        declare
                wtf integer := 1;
        begin
        execute 'create schema ' || $1;
        execute 'create role ' || $1 || 'LOGIN';
        execute 'revoke all on schema public from ' || $1;
        execute 'grant select on schema public to ' || $1;
        execute 'grant all on schema ' || $1 || ' to ' || $1 || '
with grant option';
        return $1;
end;
$$ language plpgsql
;

When I run this with select new_student('foobar'), I get the following
error message

oregon=# \i new_student.sql
CREATE FUNCTION
oregon=# select new_student('foobar');
ERROR:  role "foobar" does not exist
CONTEXT:  SQL statement "revoke all on schema public from foobar"
PL/pgSQL function "new_student" line 6 at EXECUTE statement

However, I can run the following from the command line just fine:
# create role foobar login;
# revoke all on schema public from foobar;

Can anyone explain and help me fix?  TIA.

"Webb Sprague" <webb.sprague@gmail.com> writes:

>         execute 'create role ' || $1 || 'LOGIN';

I think you're short one crucial space ...

            regards, tom lane

am  Fri, dem 14.03.2008, um 10:00:05 -0700 mailte Webb Sprague folgendes:
> Hi all,
>
> I have the following function:
>
> create function new_student (text) returns text as $$
>         declare
>                 wtf integer := 1;
>         begin
>         execute 'create schema ' || $1;
>         execute 'create role ' || $1 || 'LOGIN';

Assume, $1 contains 'foobar', you create role 'foobarlogin' now. Insert
a space before 'LOGIN' -> ' LOGIN'.

Andreas
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Andreas Kretschmer
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